class Shezhi:
    def __init__(self):
        self.pingmu_width=0
        self.pingmu_height=0
        self.color=(255,255,255)#白色背景

        self.bullet_spend = 3#子弹速度
        self.bullet_width = 10#子弹宽
        self.bullet_height = 35#子弹高
        self.bullet_color = (0,0,0)#子弹颜色